--  @testpoint:opengauss关键字blob(非保留)，作为函数名
--关键字不带引号-成功
drop function if exists blob;
create function blob(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--清理环境
drop function blob;

--关键字带双引号-成功
drop function if exists "blob";
create function "blob"(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--清理环境
drop function "blob";

--关键字带单引号-合理报错
drop function if exists 'blob';
create function 'blob'(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/

--关键字带反引号-合理报错
drop function if exists `blob`;
create function `blob`(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/